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Tandem DDE Gateway Dictionary Structure

Extending the Tandem DDE Gateway

8–18 110838 Tandem Computers Incorporated

All string fields are terminated with a byte of binary zeros.

Note The Tandem DDE Gateway Browser provides some code generation capabilities.

Caution The structure of the Tandem DDE Gateway Dictionary may change from release to release. Data

elements in the structures will not likely be removed, or their size altered, but new data elements may be

added at the end of the structures.

tagDdeDictHeader

Structure

There is one record with this structure at the start of the Tandem DDE Gateway

Dictionary.

Structure

struct tagDdeDictHeader

{

char cNullChar;

char szDdeDictFileCode[17];

unsigned long ulDdeDictVersion;

unsigned int uApplicationNameSpecified;

char cFiller[110];

};

Data Elements

cNullChar Always binary zero

szDdeDictFileCode Always TDM!DDEDICT.DIC

ulDdeDictVersion Currently 2

uApplicationNameSpecified Zero = No application prefix was specified when the

Bridge was executed.

Non-zero = An application prefix was specified

when the Bridge was executed.

cFiller Always binary zeros.

tagDdeDictElementData Structure

There are many records of this type sorted by element name (szElement).

Structure

#define TDMGW_MAX_ELEMENT_STRLEN 100

#define TDMGW_DDEDICT_CFLAG_C_STRINGS 0x00000001L

struct tagDdeDictElementData {

unsigned long ulUserMessageFlag;

unsigned long ulUserElementFlag;

unsigned long ulConversionFlag;

unsigned int uOffset;

unsigned int uLength;

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Hp NonStop G-Series Manual de usuario Pagina 120